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<?php/**
 * Server-side rendering of the `core/avatar` block.
 *
 * @package WordPress
 */
 
 /**
 * Renders the `core/avatar` block on the server.
 *
 * @since 6.0.0
 *
 * @param array    $attributes Block attributes.
 * @param string   $content    Block default content.
 * @param WP_Block $block      Block instance.
 * @return string Return the avatar.
 */
 function render_block_core_avatar( $attributes, $content, $block ) {
 $size               = isset( $attributes['size'] ) ? $attributes['size'] : 96;
 $wrapper_attributes = get_block_wrapper_attributes();
 $border_attributes  = get_block_core_avatar_border_attributes( $attributes );
 
 // Class gets passed through `esc_attr` via `get_avatar`.
 $image_classes = ! empty( $border_attributes['class'] )
 ? "wp-block-avatar__image {$border_attributes['class']}"
 : 'wp-block-avatar__image';
 
 // Unlike class, `get_avatar` doesn't filter the styles via `esc_attr`.
 // The style engine does pass the border styles through
 // `safecss_filter_attr` however.
 $image_styles = ! empty( $border_attributes['style'] )
 ? sprintf( ' style="%s"', esc_attr( $border_attributes['style'] ) )
 : '';
 
 if ( ! isset( $block->context['commentId'] ) ) {
 if ( isset( $attributes['userId'] ) ) {
 $author_id = $attributes['userId'];
 } elseif ( isset( $block->context['postId'] ) ) {
 $author_id = get_post_field( 'post_author', $block->context['postId'] );
 } else {
 $author_id = get_query_var( 'author' );
 }
 
 if ( empty( $author_id ) ) {
 return '';
 }
 
 $author_name = get_the_author_meta( 'display_name', $author_id );
 // translators: %s: Author name.
 $alt          = sprintf( __( '%s Avatar' ), $author_name );
 $avatar_block = get_avatar(
 $author_id,
 $size,
 '',
 $alt,
 array(
 'extra_attr' => $image_styles,
 'class'      => $image_classes,
 )
 );
 if ( isset( $attributes['isLink'] ) && $attributes['isLink'] ) {
 $label = '';
 if ( '_blank' === $attributes['linkTarget'] ) {
 // translators: %s is the Author name.
 $label = 'aria-label="' . esc_attr( sprintf( __( '(%s author archive, opens in a new tab)' ), $author_name ) ) . '"';
 }
 // translators: 1: Author archive link. 2: Link target. %3$s Aria label. %4$s Avatar image.
 $avatar_block = sprintf( '<a href="%1$s" target="%2$s" %3$s class="wp-block-avatar__link">%4$s</a>', esc_url( get_author_posts_url( $author_id ) ), esc_attr( $attributes['linkTarget'] ), $label, $avatar_block );
 }
 return sprintf( '<div %1s>%2s</div>', $wrapper_attributes, $avatar_block );
 }
 $comment = get_comment( $block->context['commentId'] );
 if ( ! $comment ) {
 return '';
 }
 /* translators: %s: Author name. */
 $alt          = sprintf( __( '%s Avatar' ), $comment->comment_author );
 $avatar_block = get_avatar(
 $comment,
 $size,
 '',
 $alt,
 array(
 'extra_attr' => $image_styles,
 'class'      => $image_classes,
 )
 );
 if ( isset( $attributes['isLink'] ) && $attributes['isLink'] && isset( $comment->comment_author_url ) && '' !== $comment->comment_author_url ) {
 $label = '';
 if ( '_blank' === $attributes['linkTarget'] ) {
 // translators: %s: Comment author name.
 $label = 'aria-label="' . esc_attr( sprintf( __( '(%s website link, opens in a new tab)' ), $comment->comment_author ) ) . '"';
 }
 $avatar_block = sprintf( '<a href="%1$s" target="%2$s" %3$s class="wp-block-avatar__link">%4$s</a>', esc_url( $comment->comment_author_url ), esc_attr( $attributes['linkTarget'] ), $label, $avatar_block );
 }
 return sprintf( '<div %1s>%2s</div>', $wrapper_attributes, $avatar_block );
 }
 
 /**
 * Generates class names and styles to apply the border support styles for
 * the Avatar block.
 *
 * @since 6.3.0
 *
 * @param array $attributes The block attributes.
 * @return array The border-related classnames and styles for the block.
 */
 function get_block_core_avatar_border_attributes( $attributes ) {
 $border_styles = array();
 $sides         = array( 'top', 'right', 'bottom', 'left' );
 
 // Border radius.
 if ( isset( $attributes['style']['border']['radius'] ) ) {
 $border_styles['radius'] = $attributes['style']['border']['radius'];
 }
 
 // Border style.
 if ( isset( $attributes['style']['border']['style'] ) ) {
 $border_styles['style'] = $attributes['style']['border']['style'];
 }
 
 // Border width.
 if ( isset( $attributes['style']['border']['width'] ) ) {
 $border_styles['width'] = $attributes['style']['border']['width'];
 }
 
 // Border color.
 $preset_color           = array_key_exists( 'borderColor', $attributes ) ? "var:preset|color|{$attributes['borderColor']}" : null;
 $custom_color           = $attributes['style']['border']['color'] ?? null;
 $border_styles['color'] = $preset_color ? $preset_color : $custom_color;
 
 // Individual border styles e.g. top, left etc.
 foreach ( $sides as $side ) {
 $border                 = $attributes['style']['border'][ $side ] ?? null;
 $border_styles[ $side ] = array(
 'color' => isset( $border['color'] ) ? $border['color'] : null,
 'style' => isset( $border['style'] ) ? $border['style'] : null,
 'width' => isset( $border['width'] ) ? $border['width'] : null,
 );
 }
 
 $styles     = wp_style_engine_get_styles( array( 'border' => $border_styles ) );
 $attributes = array();
 if ( ! empty( $styles['classnames'] ) ) {
 $attributes['class'] = $styles['classnames'];
 }
 if ( ! empty( $styles['css'] ) ) {
 $attributes['style'] = $styles['css'];
 }
 return $attributes;
 }
 
 /**
 * Registers the `core/avatar` block on the server.
 *
 * @since 6.0.0
 */
 function register_block_core_avatar() {
 register_block_type_from_metadata(
 __DIR__ . '/avatar',
 array(
 'render_callback' => 'render_block_core_avatar',
 )
 );
 }
 add_action( 'init', 'register_block_core_avatar' );
 
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